121011850 has 12 divisors (see below), whose sum is σ = 225082134. Its totient is φ = 48404720.

The previous prime is 121011841. The next prime is 121011851. The reversal of 121011850 is 58110121.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 109809441 + 11202409 = 10479^2 + 3347^2 .

It is not an unprimeable number, because it can be changed into a prime (121011851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1210069 + ... + 1210168.

Almost surely, 2^121011850 is an apocalyptic number.

121011850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121011850 is a deficient number, since it is larger than the sum of its proper divisors (104070284).

121011850 is a wasteful number, since it uses less digits than its factorization.

121011850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420249 (or 2420244 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 19.

The square root of 121011850 is about 11000.5386231766. The cubic root of 121011850 is about 494.6248901163.

Adding to 121011850 its reverse (58110121), we get a palindrome (179121971).

The spelling of 121011850 in words is "one hundred twenty-one million, eleven thousand, eight hundred fifty".